Crustal reflectivity near the Archaean-Proterozoic boundary in northern Sweden and implications for the tectonic evolution of the area

• Published in: Geophysical Journal International
• Main Authors: Juhlin, C., Elming, S.-Å., Mellqvist, C., Öhlander, B., Weihed, P., Wikström, A.
• Format: Text
• Language: English
• Published: Oxford University Press 2002
• Subjects: Articles; Babel; Fennoscandian; Luleå; Northern Sweden
• Online Access: http://gji.oxfordjournals.org/cgi/content/short/150/1/180; https://doi.org/10.1046/j.1365-246X.2002.01706.x

Sm-Nd isotope ratios of 1.9–1.8 Ga granitoids delineate the Archaean-Proterozoic boundary in northern Sweden, an important feature in the Fennoscandian Shield. The boundary strikes approximately WNW-ESE and is defined as a c. 20 km wide zone with juvenile Palaeoproterozoic rocks to the SSW and Archa...